I said 10's or bust

[sbiggi]

And I busted, lol

I some how got a boost leak the day I drive the car to the track.

First pass, 25psi gauge pressure, pump gas, had 18psi in the slicks.
Launched, spun the tires pretty good and the car bogged bad into 2nd. Had to respool.
1.9 60' 12.0 @ 120
I was totally surpirsed by the trap, since I was still 3rd and didnt hit the rev limiter (8700rpm). Those slicks must grow pretty big.

2nd pass, dropped the tire pressure to 17psi, put in race gas, gave the boost controller 3 full turns. Had the bog and respool into 2nd again. Dang boost didnt go up at all either.
1.8 60', 11.8 @ 121

3rd pass. Tried to fix boost leak, but didnt. Dropped tire pressure to 16 psi.
1.71 60', 11.4 @ 122

Thought I found the boost leak and fixed it. Dropped the tire pressure to 16 front, 14.5 rear. I tried to launch alot better and slip the clutch less.
The car started to squat and CRUNCH... rev limiter... shit, blew up 3rd/center diff again! First time I've ever had to be pushed off the track.
Then while being towed back to the pit, the transcase blew a hole in it.


I want to thank Dave and Hal for driving up to the track at 9pm to trailor my pos home. I really appreciate it! Thanks a million guys!!


O well maybe next year. I'm done for this season. Car has the power for a 10 when its running right, but traction and keeping the tranmission together at the same time seems to be a issue for me.

[wazzelby]

I think you were on your way before it exploded.. You'll hit it next season for sure, just spend the $$ to get your driveline in check!
As for me....Well my night was good and bad. I didn't really break anything but I didn't get into the 12's either..
My best run was a 13.2 at 109.4mph with a 1.89 60'

Overall I'm pretty upset I didn't get into the 12's but I think I need two things: a new wastegate, currently still running the internal and it only holds 21psi. We tried tightening the arm and it didn't really help.
Second is the driver mod... I need more seat time. I think if I were to have a few more passes I could have easily gotten into the 12's. I have the trap speed for it. I'll be the first to admit that my shifting is poop....
The only thing that broke was my power stearing pump. I was in the box and smoke started pouring out from under the hood and the car stalled!! They pushed me off the track, I popped the hood and found the power stearing pump was "frozen". so I cut the belt and jumped back in line. I later found the bottom bolt had backed out and wedged between the pump and pulley..
But I drove the car home so I guess that's good news.
I'm thinking I'd like to pick a few things up:
external wastegate
new WB with a gauge (mine doesn't have the gauge, it's connected to dsmlink). I think it's off cause it was reading 13.5 at WOT and that can't be right (or good).
better tranny (stock doesn't cut it)..
Hopefully by next season I'll be ready to get the 12's I've been chasing..or better..

[MidnightTSI]

Seth, sorry to see your car go down that's always rough. It's great that the DSM network of friends is so strong in Colorado to help your car home. I'm missing that a bit in AZ. As Allen said, I think you had it if it wasn't for the boost leak. Was your tranny stock? I'm assuming it wasn't but I'm not sure. Next

Allen, I'm always curious to see how your car performs because of how similar our setups are. You have a lot more supporting mods than I do but all in all they are pretty alike. How do you like the G50? I am hoping to hit 12's once I am tuned on link without E-85. :eek:

[sbiggi]

Seth, sorry to see your car go down that's always rough. It's great that the DSM network of friends is so strong in Colorado to help your car home. I'm missing that a bit in AZ. As Allen said, I think you had it if it wasn't for the boost leak. Was your tranny stock? I'm assuming it wasn't but I'm not sure. Next


Stockish

Double syncro 2nd gear from Jack and a welded center diff from Jack.

Pretty sure I stripped 3rd gear on the intermediate shaft again. Not sure what you can do to make that stronger, other then getting a new shaft and cryo treating it.

[wazzelby]

Allen, I'm always curious to see how your car performs because of how similar our setups are. You have a lot more supporting mods than I do but all in all they are pretty alike. How do you like the G50? I am hoping to hit 12's once I am tuned on link without E-85. :eek:

So far I'm not very impressed with the g50.. I get surge on the streets in almost any gear. That could be due to having 3" intercooler pipes and some other little things but over all I don't really like it. I'm going to swap everything out for a full garret setup this winter and concentrate on making it a track only car..
Plus, having a crap stock tranny and act 2600 doesn't help with the shifting. On top of all that, I was running full street trim - all interior, 2-12" subs in the back. I know that doesn't make all that much difference but I'm sure it could account for at least 2-10ths??
But overall I need more seat time and tuning time. I know my E85 tune is off a bit and could use a good re-do but I'mjust too lazy to wipe it and start calibrating that damn gm maf from scratch.. it's a real PITA...

[sbiggi]

Allen, did you weigh your car yesterday?

[MidnightTSI]

Stockish

Double syncro 2nd gear from Jack and a welded center diff from Jack.

Pretty sure I stripped 3rd gear on the intermediate shaft again. Not sure what you can do to make that stronger, other then getting a new shaft and cryo treating it.

Wow, that's crazy. Maybe you can get some more clues once it's taken apart. I have the value build from jack, and I love it so far. I only have 500 miles on it but it shifts smoother than I thought it would have.

Allen,

Sorry to here that about the G50. You gave it an honest shot with E-85 so I don't blame you for being done with it. I don't think the weight difference would be enough to change your mind. I'm going to give it a full season of a try at least. I know I probably won't be happy with it, but it was a cheap alternative to a lot of other turbos. Plus it's a conservatively sized turbo for breaking in the motor. For me it felt pretty strong with no tune on an AFCII, but until I get it tuned and on the track who knows.

[formergper]

So it looks like there might be a new fastest time.

Steven

[wazzelby]

I may try it out with an external gate before I totally give up on it. But now that the season is over (and I have a daily driver) the wife gave me the go ahead to build it up the way I want.
So I'm going to rebuild the bottom end, the head, get a SMIM, new transmission, gut the interior and cage it, and some other littel odds and ends. By opening day this spring, I'll be hoping to bypass the 12's and shoot for 11's. Probably not possible on the 50 trim but I'll give it a shot.

[JayRolla]

Wow I'm surprised your broke that welded diff. Welded up they can take a beating. Ive seen just the 4 spider diff take a lot of abuse. Anyways hope you get it together for next year. Maybe I will hit the track and see If I can get an 11 on this 16g....:rolleyes:

[MidnightTSI]

I may try it out with an external gate before I totally give up on it. But now that the season is over (and I have a daily driver) the wife gave me the go ahead to build it up the way I want.
So I'm going to rebuild the bottom end, the head, get a SMIM, new transmission, gut the interior and cage it, and some other littel odds and ends. By opening day this spring, I'll be hoping to bypass the 12's and shoot for 11's. Probably not possible on the 50 trim but I'll give it a shot.

Sick, you better keep us updated with pictures! I am also internally gated which obviously does not help. Is your O2 housing setup with a dumper tube? I have the SSAC dumper O2 housing matched up to a full Megan 3" turbo back. I'm not sure how well this will work with the G50, but hopefully it does well. Anyways I'll be looking forward to seeing how your new setup turns out. Maybe you can throw a 100 shot at it to hit 11's with the 50 trim :eek:

[sbiggi]

Wow I'm surprised your broke that welded diff. Welded up they can take a beating. Ive seen just the 4 spider diff take a lot of abuse. Anyways hope you get it together for next year. Maybe I will hit the track and see If I can get an 11 on this 16g....:rolleyes:

Well it wasnt the diff its self that breaks, its third gear on the intermediate shaft. Third gear turns the diff, and for whatever reason I keep striping the gear teeth right off the shaft.

[jaysmirage]

I to allen wasnt happy with my results with the g50 two weeks ago the best i could muster was a 12.56 @112.It does seem to pull real hard in the midrange though but not enough topend .

[wazzelby]

I agree, the mid range power is great (for 21PSI).. My traps were pretty good (109) but the overall performance just isn't where I want to be. I guess since the wife is letting me build it up I'm probably going to stop messing around and go full garrett. I will be fair and try an external gate first just to see what happens. I could probably hit mid 12's with a better tune but right now I'm just too lazy to start from scratch and recalibrate the crappy gmmaf and retune all over again..

[JayRolla]

Well it wasnt the diff its self that breaks, its third gear on the intermediate shaft. Third gear turns the diff, and for whatever reason I keep striping the gear teeth right off the shaft.

Ohh, that makes sense. Hopefully and can stop stipping that gear. That sucks!

[turbomirage]

Damn Seth, sorry to hear about your car. Don't feel to bad though, I broke my motor last saturday as well. I think I cracked cylinder 1 but havn't had the motivation to tear it down just yet. It also looks like my 50 trim is on the way out so I may be in the market for another turbo. Looks like we are both in for some more winter work.

Bobby

[MidnightTSI]

I to allen wasnt happy with my results with the g50 two weeks ago the best i could muster was a 12.56 @112.It does seem to pull real hard in the midrange though but not enough topend .

I am curious what PSI you were pushing? I would be pretty satisfied if I could get a 12.5 out of the G-50 with corn juice. At least for a week or so :p

[jaysmirage]

The 12.5 pass was at 28-29psi.

[wazzelby]

Exactly, and so far the internal gate won't hold more than like 23psi... Like I said, I'll give it one more go with an external gate but I think I'm going to end up selling this and going bigger... Man do I miss my Holset.... :( I was getting the same times last year missing 2nd completely and with a 2.1 60 foot with only 19psi on the holset...

[sbiggi]

A intake manifold will help alot.

I went 12.2 @ 114 and I'm pretty sure I had a 116mph pass on my pte bolton 50trim.
Best I got was a 112 trap with out the intake manifold.

[jaysmirage]

What cams were you running?

[sbiggi]

What cams were you running?

I have FP2's

[MidnightTSI]

The 12.5 pass was at 28-29psi.

Thanks. That is about as much as the G50 will push correct? I'm guessing that you are externally gated with a stock intake manifold?

I would like to pick up an intake manifold I just wish they weren't so expensive. Do you guys tend to use the stock TB with that setup?

[MidnightTSI]

A intake manifold will help alot.

I went 12.2 @ 114 and I'm pretty sure I had a 116mph pass on my pte bolton 50trim.
Best I got was a 112 trap with out the intake manifold.

Thanks for the advice Seth. All of your talking about the intake manifold is making me want to get one sooner than later :D

The JM Fab Intake definitely seems to be priced fairly. I'm guessing that the street version would be the best for the 50 trim? I do plan on upgrading my turbo within a couple of years so maybe the race version would be better in the long run. This would probably be laggier on the bottom and be able to hold more psi on the top end correct? Sorry about all the questions, I still have much to learn!

[sbiggi]

Thanks for the advice Seth. All of your talking about the intake manifold is making me want to get one sooner than later :D

The JM Fab Intake definitely seems to be priced fairly. I'm guessing that the street version would be the best for the 50 trim? I do plan on upgrading my turbo within a couple of years so maybe the race version would be better in the long run. This would probably be laggier on the bottom and be able to hold more psi on the top end correct? Sorry about all the questions, I still have much to learn!

I have no idea about JMFab's manifolds. I went with a magnus.

You will actually hold less psi up top because the manifold is going to flow alot more and the turbo wont be able to keep up with what the engine can consume.

PSI doesnt matter anyways, you are going for airflow.

For reference... I picked up around 50 whp and tq from 6k rpm to redline on my 50trim.

[MidnightTSI]

I have no idea about JMFab's manifolds. I went with a magnus.

You will actually hold less psi up top because the manifold is going to flow alot more and the turbo wont be able to keep up with what the engine can consume.

PSI doesnt matter anyways, you are going for airflow.

For reference... I picked up around 50 whp and tq from 6k rpm to redline on my 50trim.

Ok that makes sense, I understand now. Thanks for the explanation.

[jaysmirage]

No external gate and yes that is the limit didn't have my boost controler hooked up just to see if I could make more boost.